add ghostty config and theme

configs/ghostty_g/themes/Builtin Pastel Dark

@@ -0,0 +1,21 @@
+palette = 0=#4f4f4f
+palette = 1=#ff6c60
+palette = 2=#a8ff60
+palette = 3=#ffffb6
+palette = 4=#96cbfe
+palette = 5=#ff73fd
+palette = 6=#c6c5fe
+palette = 7=#eeeeee
+palette = 8=#7c7c7c
+palette = 9=#ffb6b0
+palette = 10=#ceffac
+palette = 11=#ffffcc
+palette = 12=#b5dcff
+palette = 13=#ff9cfe
+palette = 14=#dfdffe
+palette = 15=#ffffff
+background = 000000
+foreground = bbbbbb
+cursor-color = ffa560
+selection-background = 363983
+selection-foreground = f2f2f2